Quickproof process film



April 7, 1936. L. G. slMJlAN QUICKPROOF PROCESS FILM Filed OCt. 30, 19512 Sheets-Sheet l lli fili

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ateatro naar rcnss i 1` lather it. similari, New aven, iil'ii., assianorto liloel associates, line., ltlewhorh, hl. hl., a corporation oi NewForli dpplllcatlori iilictollter dll, 1931i, @lettini lil'ue imdldllThis invention relates to improvements in uuiclr prooi process filmshaving lor an object tol provide such a combination oi elements,including diiierent characters oi' sensitized emulsions,

one oi which is very rast and will, upon beiner photorraphicallyexposed, developed and placed under a strong light-ray, produce avisible irnase upon the other emulsion without iurther subjecting thesaine to any hind oi developing solution, and a further object oi' theinvention is to provide a novel means tor combining such eleinents.

The Figure l is a cross-section oi a substantially transparent base ihaviner upon one side i a negative emulsion t and upon the side t acoatine oi printing-out emulsion il covered by a waterprooa l; Fiaure 2is a cross-section oi a substantially transparent base l' havin@ on theside fi negative material t' andon the side il' printing-out paper ilcovered by a waterproonng ll'; Figure 3 is a cross-section oi neuativematerial il" and printing-out paper t" with plastic layer l between, theouter suri'ace oi printing-out paper t having the waterprooiine 'l";Figure t is a cross-section oi plastic base i'" having on its outer sidet'" a neaative ernulsion t'" and upon its side t'" printina-out emulsionlim; Figure 5 is a perspective oi neuative material and printing-outpaper marginally cemented, one to the other, one corner beine turneddown; and Figure o is an end view oi negative material and printing-outpaper physically distinct, one from the other.

lit is apparently. old in the art to provide comprisinp certain layersoi structure, includina a dissoluble coating removable by a hot hathVbeiore subjecting the positive to a developinp solution, but theimprovement about to be er.- piained provides a nini havina a basebetween layers of sensitized emulsion oi such distinct chters that, upona photographic eosure ed, but has a more broad application to the art oiphotography, its application beine limited only by the scope ot whathereinafter may be claimed.

Referring more particularly to the drawings, the Figure 1 illustrates atransparent or opal base i having upon its side t a hlm or negativeinaterial t or having a coating oi negative emulsion upon the outer sideil, the base l havingy upon its opposite side t a coating oiprinting-out emulsion t the bach oi which is covered by a waterprooiinaelement l. The Figure Ziilustrates a transparenter opal base l havingupon its side A t a nini or negative material t' or having a coatinp oinepative emulsion upon the outer side il',

the base i' having upon its opposite side il printinu-out paper t', thebaci: oi which is covered by a waterproofing element l. In usino' opalbase, illustrated by the Fieures l and 2, it has -been discovered that,alter nialrina the first-er;-

posure on the negative emulsion coated side oi the iilrn and, whileprotecting the reverse side oi the layers, subject the erposed side todevelopine and tiring solutions, the printinn-out emulsion, bysubjecting the exposed side ci the layers to a strong actinic light-ray,forms a positive image oi the subject already photouraphed whereby theoperator or other individual may see the immediate and positive irnaeeoi the sub- `lect without dissolving the negative layer as shown to benecessary in the previous art. The Fleure 3 illustrates a hlrn ornegative teriai t" with a coating oi negative emulsion at il" andprinting-out paper t" with a plastic layer l" therebetween, the baclr oithe printing-out paper havina the waterproofing covering ll". rii'heFieure il illustrates a plastic base i" having upon its side t" a illmor negative material il" or having a coatingr oinegative emulsion uponthe outer side ll'", the base l'" having upon its opposite side t'"printing-out emulsion or paper t'". lin using the plastic base,illustrated by the Figures Il and li, the layers may be pulled apartwithout ruining either layer and the prooi-print thus removed so thatduplicate prints may be made from the negative. i course the wellirnownmethod oi optical printing system could be used with redected liebt andthen the prooi emulsion would not have to be removed trom the layers inmakina duplicate prints. llilaen the process or developing the negativeelement is by spraying the negative emulsion coated side oi. the nlm thewaterproof element may be omitted in the manu-lecture oi the improvedhiru as illustrated by the Figure d. illustrate a negative material tm'and printinuout paper tm adapted to be cemented one to the other. TheFigure 5 iurther illustrates the niarginal cement layer i"" marginallysecuring the layers tm and tm one to the other along each of the iouredges. To provide a close contact between these layers within theuncemented area a vacuum may he establed therebetween in The Figures 5and o any known manner, or the improved film may be placed upon acylinder during the printing process, the layers 3" and 6" in conformingto the cylindrical surface conforming one to the other in relative closecontact. To separate the marginally cemented layers such cementedmarginal portions may be cut away, but, if the negative material be inplate form, the layers must be pulled apart. The Figure 6 illustratestwo physically distinct bases 3 and 6 one of which is provided with acoating of negative emulsion upon its surface I"" and the other base isprinting-out paper or is coated with printing-out emulsion as at 8, thedistinct bases 3" and 6"" being adapted to be cemented/ one to the othermarginally or otherwise before printing.

In using the improved quick proof process film, the film is firstphotographically exposed in the usual manner, the side of the filmhaving the coating of negative emulsion having been exposed thereby tothe subject the image of which subject is then developed upon the filmby the usual developing and fixing process, but when, after suchdeveloping, the film is exposed to a 'strong actinic light-ray by meansof which the negative image, as developed upon the film, is printed uponthe printing-out paper or emulsion thereby producing a proof printwithout subjecting the printing-out paper or emulsion to any kind ofdeveloping solution. This improved method is especially adapted, but notlimited, to be used in portrait work in connection with automaticphotographic and developing apparatus so that a photographer, aftertaking a picture of a subject, may develop and fix the negative andthen,by merely subjectingl the improved film to a light, be enabled to showthe proof within a very few minutes without destroying the negative. Theimproved method therefore has distinct advantages over methods disclosedby the previous art which shows that the negative is necessarilydestroyed before the picture is made. In the portrait field thenegatives are more important after seeing the proof; for the negativesare required in making duplicates pictures. Further advantages, otherthan the saving of time and preserving the negatives, are gained by theuse of the improved film by reason of the fact that the subject mayalmost immediately see the result of his posing before the camera andthus substantially reduce the number of required sittings usually madenecessary in order that, when the proofs were ready to be seen, aselection therefrom might be had; for, until my invention and discovery,the posing subject had no means of knowing the immediate result of aparticular sitting, without destroying the negative.

1. An article of manufacture, comprising `a substantially transparentbase having upon opposite sides thereof negative and printing-outemulsions one of which sides is thus adapted to produce an image thereononly after developing, and the other side being adapted to produce apositive image merely by subjecting the same to a strong light-ray.

2. An article of manufacture, comprising a transparent base having uponone side a layer of film material having a coating of negative emulsion,and upon the opposite side a coating of printing-out emulsion exteriorlywaterproofed.

3. An article of manufacture, comprising a transparent base having uponone side thereof a layer of film material having'a coating of negativeemulsion, and upon the opposite side thereof printing-out paperexterioly waterproofed.

4. An article of manufacture, comprising two physically distinct basesthe face of one of which is provided with a coating oi' negativeemulsion and adapted to be photographically exposed and developed, andthe face of the other base being coated with a printing-out emulsion andcemented back to back to said first base so that a positive image may beseen upon it after merely subjecting the same to a light. l

5. An article of manufacture, comprising two physically distinct bases,the face of the first of which is provided with a coating of negativeemulsion, and the face of the second being coated with a printing-outemulsion and marginally cemented back to back to the said first basewhich, being adapted to be photographically exposed and developed,adapts the second base for producing a positive proof visible thereonafter subjecting the same only to a strong light-ray.

6. As an improvement in quick proof process films, comprising an opalbase having upon one side a layer of film material having a coating ofnegative emulsion, and upon the oppositeside a coating of printing-outemulsion exteriorly waterproofed.

'1. As an improvement in quick proof process films, comprising an opalbase having upon one side thereof a layer of film material having acoating of negative emulsion, and upon the opposite side thereofprinting-out paper exteriorly waterproofed.

LUTHER G. SIMJIAN.

